Evidence map›Paper›PMID 36378365›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2023

Pallidal deep brain stimulation for tardive dystonia: meta-analysis of clinical outcomes.

Michael Grabel, Aristide Merola

RetractedAbstract readMeta-AnalysisReviewRetracted Publication
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 37% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 3 citations in OpenAlex.

  1. The epidemiology and phenomenology of non-antipsychotic-induced dystonia: a hybrid systematic-narrative review.European psychiatry : the journal of the Association of European Psychiatrists · 2025
    Pooled it
  2. Clinical neurophysiology in the treatment of movement disorders: IFCN handbook chapter.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
    Review
  3. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 1 country.

Michael GrabelDepartment of Environmental Health Division of Biostatistics and Bioinformatics, University of Cincinnati College of Medicine, Kettering Lab Building, Room 112, 160 Panzeca Way, Cincinnati, OH, 45267-0056, USA. grabelmz@mail.uc.edu.ORCID http://orcid.org/0000-0002-7141-2016
Aristide MerolaDepartment of Neurology, Ohio State University Wexner Medical Center, Columbus, OH, USA.
The Ohio State University Wexner Medical Center · USUniversity of Cincinnati Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTardive dystonia (TD) is a disabling complication of pharmacological therapy with dopaminergic receptor antagonists, usually resistant to oral medications. Several reports have shown that deep brain stimulation (DBS) of the globus pallidus pars interna (GPi) might be effective in TD, but the overall level of evidence remains limited to case reports or small case series.

objectivesWe sought to summarize the collective evidence in support of GPi-DBS for TD using a meta-analytic approach.

methodsWe searched PubMed for human studies reporting tardive dystonia cases treated with GPi-DBS that reported the validated Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) as outcome measure. Data extracted were reviewed for risk of bias. Then, through linear mixed effects modeling of the percent improvement seen on an individual level, we estimated the average improvement effect varying by study.

resultsThe searching strategy resulted in a total of n = 78 studies, which were screened for eligibility criteria resulting in the inclusion of n = 14 studies, yielding 134 TD patients for the final analyses. The overall estimate improvement in the BFMDRS after GPi-DBS was 66.88 ± 11.96%. The review of individual case reports indicated rare worsening (n = 4) or lack of improvement (n = 3) following GPi-DBS.

conclusionsBilateral GPi-DBS can be an effective therapeutic option for severe cases of TD resistant to oral pharmacological therapies, even though rare cases of symptom worsening or lack of improvement have also been reported.

Indexed as

Deep Brain StimulationDystoniaDystonic DisordersTardive DyskinesiaDopamine AntagonistsGlobus PallidusHumansTreatment OutcomeDopamine AntagonistsDeep brain stimulationDystoniaMeta-analysisTardive

Identifiers

PMID36378365
OpenAlexW4309093715

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.